- proof
- proof
^{1}**W3S2**[pru:f]*n*▬▬▬▬▬▬▬**1¦(evidence)¦****2¦(copy)¦****3¦(mathematics)¦****4 the proof of the pudding (is in the eating)****5¦(alcohol)¦**▬▬▬▬▬▬▬[Date: 1200-1300; : Old French; Origin: preuve, from*Late Latin*proba, from*Latin*probare;**PROBE**]^{2}**1.)****¦(EVIDENCE)¦**[U and C]facts, information, documents etc that prove something is true**proof of**▪ proof of the existence of life on other planets▪ This latest interview was**further proof**of how good at her job Cara was.**proof of purchase/ownership/identity**▪ Do you have any proof of purchase? (=something to prove that you bought and paid for something)▪ You'll need your passport**as proof**of identity.**proof (that)**▪ Do you have any proof that this man stole your bag?▪ There is no proof that the document is authentic.▪ Laboratory tests gave**conclusive proof**that the meat presents no risk to human health.▪ He's**living proof**(=his experience or life shows it is true) that footballers can still play at the highest level into their late thirties.**proof positive**(=definite proof that cannot be doubted)▪ We received 800 applications last year, proof positive that the college is highly regarded by parents and students.**burden/onus of proof***law*(=used to say who has to show that something is true or not in a legal case)▪ The burden of proof lies on the defendant.**2.)****¦(COPY)¦**[C usually plural]*technical*a copy of a piece of writing or a photograph that is checked carefully before the final printing is done▪ Can you check these proofs?**3.)****¦(MATHEMATICS)¦****a)**a test in mathematics of whether a calculation is correct**4.)****the proof of the pudding (is in the eating)**used to say that you can only know whether something is good or bad after you have tried it**5.)****¦(ALCOHOL)¦**[U]a measurement of the strength of some types of alcoholic drink, especially ↑spirits▪ 70% proof vodka (=that contains 70% pure alcohol) BrE▪ 70 proof vodka (=that contains 35% pure alcohol) AmE**proof**^{2 }proof^{2}*adj***be proof against sth***literary*to be too strong or good to be affected by something bad▪ Their defences are proof against most weapons.**proof**^{3 }proof^{3}*v*[T]*BrE***1.)**[usually passive]to treat a material with a substance in order to protect it against water, oil etc**proof sth against sth**▪ climbing gear proofed against water**2.)**to proofread something

*Dictionary of contemporary English.
2013.*